/Engine/Source/Runtime/InstallBundleManager/Public/InstallBundleManagerInterface.h
Less expensive version ofGetContentState()that only returns install state Synchronous versions return null if bundle manager is not yet initialized
[FDelegateHandle](API\Runtime\Core\Delegates\FDelegateHandle) GetInstallState ( [FName](API\Runtime\Core\UObject\FName) BundleName, bool bAddDependencies, FInstallBundleGetInstallStateDelegate Callback, [FName](API\Runtime\Core\UObject\FName) RequestTag )